Common tyrosinase (TYR) inhibitors used in cosmetics, such as hydroquinone, kojic acid, and arbutin, can cause side effects including erythema, skin peeling, and dryness. Therefore, the development of natural whitening agents that offer excellent permeability, minimal irritation, and high safety has become a primary focus in the field of TYR inhibitors. In this study, we demonstrate that White birch sap (WBS), within a safe concentration range, effectively reduces TYR activity and melanin content in both B16F10 mouse melanoma cells and zebrafish larvae. Importantly, WBS exhibits minimal irritation to neutrophils in fluorescent zebrafish and does not affect the behavior of adult zebrafish. Furthermore, WBS downregulates the gene expression levels of microphthalmia-associated transcription factor, TYR, tyrosinase-related protein-1, and tyrosinase-related protein-2 in B16F10 cells. In conclusion, our research confirms that WBS, a naturally derived substance, offers high safety and mild effects, making it a promising candidate for a skin-whitening agent.
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http://dx.doi.org/10.1016/j.heliyon.2024.e26715 | DOI Listing |
BMJ Open Gastroenterol
January 2025
Department of Gastroenterology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK.
Objective: Studies in the USA examining the relationship between ethnicity and colorectal cancer (CRC) identified significant variation. This study sought to examine the relationship between ethnic group, route to diagnosis, early-onset CRC and stage at diagnosis in the English National Health Service.
Methods: Data from COloRECTal cancer data Repository for all individuals diagnosed with CRC (International Classification of Diseases version 10, C18-C20) between 2012 and 2017.
Phys Rev Lett
December 2024
Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
Skinmed
January 2025
Baylor Scott & White University Hospital, Dallas, TX.
Filsuvez (birch triterpenes) topical gel received approval in 2023 for the treatment of epidermolysis bullosa (EB) in pediatric patients (aged ≥6 months) and adults. It promotes wound healing by modulating inflammation, encouraging new tissue formation, and maintaining the skin barrier. In a randomized, double-blind, controlled, parallel-group, phase III trial (EASE, NCT03068780), 223 patients were randomly assigned to two groups: the first group received treatment with birch triterpenes topical gel (study gel, n = 109), and the second group received treatment with vehicle gel (n = 114).
View Article and Find Full Text PDFJ Pediatr Orthop
December 2024
Department of Orthopaedic Surgery, C.S. Mott Children's Hospital, Michigan Medicine, Ann Arbor, MI.
Background: Prune belly syndrome (PBS) is a rare condition characterized by absence of abdominal musculature, cryptorchidism, and obstructive uropathy. The most common orthopaedic problem is scoliosis, yet no reports on growth-friendly surgical treatment of early-onset scoliosis (EOS) exist. Our purpose was to evaluate outcomes of distraction-based implants in children with PBS.
View Article and Find Full Text PDFZhonghua Yu Fang Yi Xue Za Zhi
December 2024
Department of Clinical Laboratory, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai200336, China.
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